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2. CD 200/CD 200R paired potent inhibitory molecules regulating immune and inflammatory response
- Creator:
- Holmannová, Drahomíra, Koláčková, Martina, Kondělková, Kateřina, Kuneš, Pavel, Krejsek, Jan, and Andrýs, Ctirad
- Format:
- braille, text, and regular print
- Type:
- model:article, article, Text, práce podpořená grantem, přehledy, and TEXT
- Subject:
- zvířata, antigeny CD--imunologie--terapeutické užití, autoimunitní nemoci--imunologie, nemoci centrálního nervového systému--imunologie, lidé, imunita, nádory--imunologie--terapie, transplantační imunologie, and virové nemoci--imunologie
- Language:
- English
- Description:
- CD200 and its receptor were recognized as having the multiple immunoregulatory functions. Their immunoregulatory, suppressive, and tolerogenic potentials could be very effectively exploited in the treatment of many diseases, e.g. Alzheimer disease, rheumatoid arthritis, and allergy to name only some. Many research projects are aimed to develop clinically valuable methods being based on the structure and function of these paired molecules. In this review, we would like to introduce CD200/CD200R functions in a clinical context., Drahomíra Holmannová, Martina Koláčková, Kateřina Kondělková, Pavel Kuneš, Jan Krejsek, Ctirad Andrýs, and Literatura 51
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
3. CD200/CD200R paired potent inhibitory molecules regulating immune and inflammatory responses
- Creator:
- Holmannová, Drahomíra, Koláčková, Martina, Kondělková, Kateřina, Kuneš, Pavel, Krejsek, Jan, and Andrýs, Ctirad
- Format:
- braille, electronic resource, remote, and elektronický zdroj
- Type:
- model:article, article, Text, statistics, přehledy, práce podpořená grantem, and TEXT
- Subject:
- zvířata, antigeny CD--fyziologie, antigeny povrchové--fyziologie, lidé, imunita--fyziologie, zánět--patofyziologie, receptory buněčného povrchu--fyziologie, and signální transdukce
- Language:
- English
- Description:
- CD200/CD200R are highly conserved type I paired membrane glycoproteins that belong to the Ig superfamily containing a two immunoglobulin‑like domain (V, C). CD200 is broadly distributed in a variety of cell types, whereas CD200R is primarily expressed in myeloid and lymphoid cells. They fulfill multiple functions in regulating inflammation. The interaction between CD200/CD200R results in activation of the intracellular inhibitory pathway with RasGAP recruitment and thus contributes to effector cell inhibition. It was confirmed that the CD200R activation stimulates the differentiation of T cells to the Treg subset, upregulates indoleamine 2,3‑dioxygenase activity, modulates cytokine environment from a Th1 to a Th2 pattern, and facilitates an antiinflammatory IL‑10 and TGF‑β synthesis. CD200/CD200R are required for maintaining self‑tolerance. Many studies have demonstrated the importance of CD200 in controlling autoimmunity, inflammation, the development and spread of cancer, hypersensitivity, and spontaneous fetal loss., Drahomíra Holmannová, Martina Koláčková, Kateřina Kondělková, Pavel Kuneš, Jan Krejsek, Ctirad Andrýs, and Literatura 46
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
4. Crohn's disease: a role of gut microbiota and Nod2 gene polymorphisms in disease pathogenesis
- Creator:
- Hrnčířová, Lucia, Krejsek, Jan, Šplíchal, Igor, and Hrnčíř, Tomáš
- Format:
- print, text, and regular print
- Type:
- model:article, article, Text, časopisecké články, práce podpořená grantem, přehledy, and TEXT
- Subject:
- Crohnova nemoc--genetika, gastrointestinální trakt--mikrobiologie, interakce genů a prostředí, genetická predispozice k nemoci, srovnávací asociační studie genomů, lidé, mikrobiota, signální adaptorový protein Nod2--genetika, and polymorfismus genetický
- Language:
- English
- Description:
- Crohn's disease is a chronic immune-mediated intestinal inflammation targeted against a yet incompletely defined subset of commensal gut microbiota and occurs on the background of a genetic predisposition under the influence of environmental factors. Genome-wide association studies have identified about 70 genetic risk loci associated with Crohn's disease. The greatest risk for Crohn's disease represent polymorphisms affecting the CARD15 gene encoding nucleotide-binding oligomerization domain 2 (NOD2) which is an intracellular sensor for muramyl dipeptide, a peptidoglycan constituent of bacterial cell wall. The accumulated evidence suggests that gut microbiota represent an essential, perhaps a central factor in the induction and maintaining of Crohn's disease where dysregulation of normal co-evolved homeostatic relationships between intestinal microbiota and host mucosal immune system leads to intestinal inflammation. Taken together, these findings identify Crohn's disease as a syndrome of overlapping phenotypes that involves variable influences of genetic and environmental factors. A deeper understanding of different genetic abnormalities underlying Crohn's disease together with the identification of beneficial and harmful components of gut microbiota and their interactions are essential conditions for the categorization of Crohn's disease patients, which enable us to design more effective, preferably causative, individually tailored therapy. and L. Hrnčířová, J. Krejsek, I. Šplíchal, T. Hrnčíř
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
5. Imunitní systém a stárnutí
- Creator:
- Krejsek, Jan, Trojáčková Kudlová, Manuela, and Koláčková, Martina
- Type:
- model:article, article, Text, and TEXT
- Subject:
- staří, věkové faktory, imunita, T-lymfocyty - podskupiny, životní prostředí, and lidé
- Language:
- Czech and English
- Description:
- Imunitní systém prodělává v průběhu života zásadní změny, které reflektují odlišné potřeby jedince v různých údobích života. Nejvýznamnější ontogenetickou dynamiku vykazuje specifická, buňkami zprostředkovaná, imunita. v časných fázích života dominuje aktivita subsetu Th2 pomocných T-lymfocytů. V dospělosti dochází k přesmyku vedoucí k převaze subsetu Thl T-lymfocytů. Pro stán je opět charakteristický návrat k převaze aktivit subsetu Th2 T-Iymfocytů. Až překvapivě efektivní je imunitní systém osob, které se dožily vysokého věku 90-100 let. Zatím nelze doložit, zda je tento fakt příčinou nebo důsledkem dlouhověkosti. Z experimentu na zvířecích modelech vyplývá, že modulací imunitního systému lze prodlužovat věk i zvyšovat kvahtu života. Pro fyziologické změny imunitlího systému, které lze identifikovat u starých hdí, se zavádí termín imunosenescence., The immune system is undergoing a lot of substantial changes during life which reflect different demands of every individual in different periods of life. The most important ontogenetical dynamies is typical for specific cell-mediated immunity. The activity of Th2 subset of helper inducer CD4+ T cells is upregulated during early period of life. There is the shift from Th2 subset reactivity to predominant Thl subset eactivity during early adulthood. The return back to the predominant Th2 reactivity is typical for the late period of life. The immune system of earderly people who are 90-100 years old is supprisingly well preserved. It is not possible to say now if this fact is either the cause or the consequence of successful senescence. The term immunosenescence is now coined to describe the physiological changes of the immune system in elderly people., Jan Krejsek, Manuela Kudlová, Martina Koláčková, and Lit. 39
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
6. Increase of intracellular BAFF in B cells of Sjögren's patients is not affected by decrease of BAFFR
- Creator:
- Krejsek, Jan, Koláčková, Martina, Lindrová, I., Slezák, Radovan, and Andrýs, Ctirad
- Format:
- print, text, and regular print
- Type:
- model:article, article, Text, časopisecké články, práce podpořená grantem, and TEXT
- Subject:
- faktor aktivující B-buňky--biosyntéza--krev, receptor faktoru aktivujícího B-buňky--biosyntéza, B-lymfocyty--metabolismus, ženské pohlaví, lidé, intracelulární tekutina, intracelulární membrány, mužské pohlaví, lidé středního věku, monocyty--metabolismus, and Sjoegrenův syndrom--metabolismus
- Language:
- English
- Description:
- The presence of a broad spectrum of autoantibodies in Sjögren's syndrome (SjS) patients is the result of abnormal B-cell regulation that can be at least partially explained by abnormal BAFF/BAFFR regulation. The objective of this study was to determine both membrane and intracellular expression of BAFF/BAFFR in monocytes and B-cells in peripheral blood of 19 primary Sjögren's syndrome patients and 20 healthy controls using flow cytometry. We also measured sBAFF in serum. Compared to healthy controls, both surface and intracellular expression of BAFF was significantly increased in monocytes and B-cells of SjS patients. Also serum sBAFF level was elevated. Expression of BAFFR on B-cells of SjS patients was surprisingly decreased, but there was no clear increase or decrease within monocytes. Our results indicate that activated monocytes communicate with B-cells via BAFF and BAFFR, so that B-cells are stimulated, but BAFF is also produced to stimulate cells in autocrine way. The decrease of BAFFR expression in SjS patients suggests that there is the mechanism that attempts to take over in order to balance the high level of BAFF. and J. Krejsek, M. Koláčková, I. Lindrová, R. Slezák, C. Andrýs
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
7. RANK/RANKL expression is induced by cardiac surgical operation
- Creator:
- Krejsek, Jan
- Type:
- model:article and TEXT
- Language:
- English
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
8. The number of immunoregulatory T cells (Treg) is increased in patients with psoriasis after Goeckerman therapy
- Creator:
- Kondělková, Kateřina, Vokurková, Doris, Krejsek, Jan, Borská, Lenka, Fiala, Zdeněk, Hamáková, Květoslava, and Andrýs, Ctirad
- Format:
- braille, text, and regular print
- Type:
- model:article, article, Text, práce podpořená grantem, and TEXT
- Subject:
- dospělí, dehet uhelný--terapeutické užití, dermatologické látky--terapeutické užití, ženské pohlaví, lidé, počet lymfocytů, mužské pohlaví, lidé středního věku, psoriáza--imunologie--terapie, T-lymfocyty regulační--imunologie, and terapie ultrafialovými paprsky
- Language:
- English
- Description:
- Regulatory T cells (Treg) are a specialized subpopulation of T cells that act to suppress inadequate immune response. Psoriasis is recognized as a T -cell driven immune-mediated systemic inflammatory disease with skin manifestation. Effective therapeutical approach to treat psoriasis is Goeckerman therapy (GT ). The aim of this study was to compare the number of Treg in the peripheral blood of 27 psoriatic patients and 19 controls and to evaluate the influence of GT on Treg population in peripheral blood of patients with psoriasis. There was no significant difference in the relative number of Treg cells in the peripheral blood of healthy blood donors and patients with psoriasis before initiation of GT (P = 0.2668). In contrary, the relative number of Treg cells in peripheral blood of patients with psoriasis after GT was significantly higher than those found in healthy blood donors (P = 0.0019). Moreover, the relative number of Treg is significantly increased in psoriatic patients after Goeckerman therapy compared to the pre-treatment level (P = 0.0042). In conclusion, this significant increase in Treg count after GT is probably associated with amelioration of inflammation by GT , as disease activity expressed as PASI decreased in our patients by GT (P = 0.0001)., Kateřina Kondělková, Doris Vokurková, Jan Krejsek, Lenka Borská, Zdeněk Fiala, Květa Hamáková, Ctirad Andrýs, and Literatura 39
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
9. TLR2 and TLR4 expression on blood monocytes and granulocytes of cardiac surgical patients is not affected by the use of cardiopulmonary bypass
- Creator:
- Krejsek, Jan, Koláčková, Martina, Mand'ák, Jiří, Kuneš, Pavel, Holubcová, Zdeňka, Holmannová, Drahomíra, AbuAttieh, Mouhammed, and Andrýs, Ctirad
- Format:
- print, text, and regular print
- Type:
- model:article, article, Text, časopisecké články, práce podpořená grantem, and TEXT
- Subject:
- staří, kardiopulmonální bypass, kohortové studie, koronární bypass, nemoci koronárních tepen--metabolismus--chirurgie, ženské pohlaví, granulocyty--metabolismus, lidé, mužské pohlaví, lidé středního věku, monocyty--metabolismus, toll-like receptor 2--metabolismus, and toll-like receptor 4--metabolismus
- Language:
- English
- Description:
- Cardiac surgery is inseparably linked to the activation of innate immunity cells recognizing danger signals of both endogenous and exogenous origin via pattern recognition receptors such as TLR receptors. Therefore, we followed by flow cytometry TLR2 and TLR4 expression on blood monocytes and granulocytes of patients who underwent coronary artery bypass grafting using beating heart surgery (off-pump, n = 34), with use of standard cardiopulmonary bypass (CPB), (on-pump, n = 30), and miniinvasive CPB (mini on-pump, n = 25), respectively, before, during surgery, and up to 7th postoperative day. TLR2 and TLR4 expression both on monocytes and granulocytes was significantly diminished already at the end of CPB being highly significantly decreased at the end of surgery in all patients' groups. TLR2 and TLR4 expression reached preoperative value at the 1st postoperative day being significantly higher at the 3rd postoperative day. Using intracellular staining we found the peak of TLR2 and TLR4 expression inside of monocytes and granulocytes at the first postoperative day in a subgroup of on-pump patients. In conclusion, TLR2 and TLR4 expression is significantly modulated in patients undergoing coronary artery bypass grafting as a part of adaptive homeostatic mechanisms induced by major surgery. The very surgical trauma is responsible for TLR2 and TLR4 modulation. Surprisingly, cardiopulmonary bypass itself was little contributing to the modulation of TLR2 and TLR4 expression. and J. Krejsek, M. Kolácková, J. Mand'ák, P. Kunes, Z. Holubcová, D. Holmannová, M. AbuAttieh, C. Andrýs
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
10. Torakoskopicky navozená chemická pleurodéza v léčbě maligního pleurálního výpotku
- Creator:
- Habal, Petr, Omran, Nedal, Jankovičová, Karolína, Kondělková, Kateřina, Krejsek, Jan, and Manďák, Jiří
- Format:
- braille, text, and regular print
- Type:
- model:article, article, Text, práce podpořená grantem, hodnotící studie, přehledy, and TEXT
- Subject:
- maligní pleurální výpotek--etiologie--farmakoterapie--chirurgie, pleurodéza--metody--statistika a číselné údaje, torakoskopie, výsledek terapie, mastek--terapeutické užití, dospělí, staří, ženské pohlaví, lidé, mužské pohlaví, lidé středního věku, sCD-163, and talkáž
- Language:
- Czech and English
- Description:
- Kontinuální tvorba výpotků jakékoliv etiologie zásadním způsobem ovlivňuje kvalitu života nemocných. Akumulace tekutiny v pleurální dutině postupně komprimuje plicní parenchym. Prvním příznakem bývá progrese námahové dušnosti, později se přidává i klidová dušnost. S nárůstem výpotku dochází ke kompresi plicního parenchymu s rozvojem plicní atelektázy. Nemocný je ohrožen vznikem zánětového onemocnění plic v nevzdušném plicním parenchymu. U diagnózy maligního onemocnění je riziko zánětových komplikací výrazně vyšší vzhledem k předchozí chemoterapii či radioterapii, která zásadním způsobem snižuje imunitu. Opakovaná tvorba výpotku se výrazně podílí na rozvoji terminálního stavu nádorové kachexie. Efektivní metodou léčby je chemická pleurodéza, která se užívá u vybraného spektra nemocných. Principem je navození aseptické pleuritidy. Nejefektivnější cestou aplikace léčiva je videotorakoskopie. V souboru bylo 47 nemocných, 29 (61,7 %) mužů a 18 (38,3 %) žen, s cytologicky prokázaným recidivujícím maligním pleurálním výpotkem. Věkové rozmezí 42–80 let, Ø věk 65 let. Cílem práce bylo objektivizovat průběh celkových a lokálních zánětových změn po talkáži. Efekt léčby nebyl ovlivněn základním typem nádorového onemocnění. U obou skupin nebyly významně odlišné pooperační komplikace, což dokládá bezpečnost zvolené metody a podporuje správně zvolený algoritmus léčby., Continuous pleural effusion production of any aetiology can significantly affect the quality of patients life. Chronic effusion accumulation in the pleural cavity can lead to lung parenchyma compression. The first symptom of this entity is a progressive exertional dyspnea, which can later turn in dyspnea at rest. With the increase of the pleural effusion volume, pulmonary atelectasis can develop due to chronic parenchycha compression. The patient is at risk of inflamatory complications from the territory of non-ventilated parenchyma. Patients with a diagnosis of malignant disease have this risk considerably higher due to their previous chemotherapy or radiation, which substantially affect the immunity system. Repeated pleural effusion formation can significantly take part in the development of the terminal status of cancer cachexia. An effective method of palliative treatment is a chemical pleurodesis, which is used in selected patients. The principle is inducing aseptic inflammation. The most effective way of application is via videothoracoscopy. In a group of 47 patients, there were 29 (61.7 %) men and 18 (38.3 %) women with cytologically diagnosed recurrent malignant pleural. The age ranged between 42 and 80 with average age of 65 years. The aim was to assess the course of local and systemic inflammatory changes after talc application. The effect of treatment was not influenced by the type of malignancy . In both groups there was no significant difference in postoperative complications. This proves the safety of the selected procedure and also supports the correctness of the chosen algorithm of treatment., Petr Habal, Nedal Omran, Karolina Jankovičová, Kateřina Kondělková, Jan Krejsek, Jiří Manďák, and Literatura
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public